Ethan Gunderson

I don't care if it wastes tokens. Talking to my agents like this is just more fun.

I spent last weekend in upper Minnesota with a group of friends and our kids. It was refreshing in a way that I didn't realize until now. Not once did we talk about AI.

You should be allowed to leave work early if the vibes are off

Taking my kid to a Tame Impala concert tonight and I can only assume this will be me.

Spending $400 to save $10 by not having to purchase another poorly done 3d printed thing for my kids.

Working with my 8 year old on designing a game to teach him how to type has been a good counterpoint to LLM induced anxiety and dread.

⚡ Metrics. Traces. Telemetry. Learn how to instrument Elixir applications and build a stronger observability foundation with @ethangunderson.com and Zack Kayser. A practical training focused on understanding and debugging production systems. 📍 In-person only: Sept 9 elixirconf.com

So far, Fable is the only model to take my "reply to me like you are Carmy from The Bear" comment in my Claude file seriously. However, it does not pick up on my The West Wing references. So, there is still room for LLM improvement.

I needed a world map for a project. Asked Claude to render one. I wish I didn't.

🚨 Update hackney 🚨 A **bunch** of vulnerabilities I reported in hackney were just disclosed. Please upgrade to 4.0.1 ASAP. I know this is gonna start dependency hell so please take some time for this. Please RT for reach. #ElixirLang cna.erlef.org/cves/

I really don't remember the last time I had a workday that wasn't interrupted by a third party incident of some sort. Time to refresh that XKCD.

This post from @josevalim.bsky.social is such important context for anyone trying to evaluate the performance of LLMs. They're super useful in lots of cases! ...but they're absolutely a hindrance in many others. nitter.net/josevalim/st... #ElixirLang

Today I was reminded of one of my favorite pages on the internet. wiki.c2.com?PokemonExcep...

My not so humble opinion in dealing with Security Architects and Spdcialists over four decades is that many hold users in contempt and do not care that their products and solutions are painful to use.

Why do the Japanese like their buns askew (2026)

39 seconds into the Clojure documentary and I can already tell that this is going to be amazing.

I’m nostalgic for the days when the grift was behind closed doors.

Thanks to the increased productivity with AI, we can finally spend more time in Scrum meetings

I just released a lil @elixir-lang.org library for generating docs about telemetry events from structured data. Love me some telemetry events but they're often an underdocumented aspect of libraries. hex.pm/packages/tel... Feedback welcome 👐

Tired: AI won't take your job, but someone using it will. Wired: AI won’t take your job, bad management decisions wrapped in an AI trench coat will.

But for real, what's going on over at Github?

When Claude writes test first: HAHA YES THIS IS GREAT When Claude goes off the rails, spits out code, pretends tests don't exist: Listen here you little shits.

OpenAI published a repo to orchestrate AI agents built primarily with Elixir (96.1%): github.com/openai/symph... #elixirlang

One of these days a bloom filter is going to be the solution to my problems. Today is not that day.

Highlighting the speaker who stood in front of the Surprise mayor and told him to consider what the Mayor of Ohrdruf must’ve thought before he died by suicide: “He might have thought ‘how is this my fault I had no jurisdiction over this’ maybe he said ‘this site was not subject to local zoning.’”

It’s pronounced claw-day, right?

Ripping a Lilo & Stitch cd so I can put it on my iPod while waiting for Claude to finish a task is apparently something I do in 2026. What a weird timeline.

Labels not including track metadata on newly manufactured CDs has to be some of the laziest shit I've seen in awhile.

Buying physical media every time I read an article on AI written by three LLMs in a trench coat is a fun new way to play "markets can remain irrational longer than you can remain solvent".

Claude Code has greatly decreased the amount of time it takes me to go from idea to abandoned project.

A long known irony of automation is that as you automate the most frequent (and easy) cases first, people are left to handle both increasingly rare *and* challenging situations, with less practice.

If you didn't like content written for SEO, boy are you gonna hate content written for AI.

Hugs to whoever at Cloudflare is dealing with this outage. I do not envy you right now.

Are any of you aware of an ActiveRecord Elixir implementation?

We're living through the Who Cares Era, where completely disposable things are shoddily produced for people to mostly ignore, while the government stomps its uncaring boot on our necks. But there's an easy way to fight back: Care. I wrote about it: dansinker.com/posts/2025-0...

🚀 I’m seeking Elixir contracting opportunities in the 15–32 hours per week range. #ElixirLang ✅ Team Leadership 🤝 Staff Augmentation 🧪 Testing Enhancements 📚 Documentation Refinement 🔧 Technical Debt Cleanup 💜 Mentoring Background and client testimonials: mikezornek.com/elixir-consu...

Only a few hours left to submit something for ElixirConf 2025. I want to speak, but my brain isn't coming up with any good ideas. What do you want to see me talk about? #elixirlang

ngl part of me really enjoys that being polite to chatgpt also costs the company money.

Never have another CVE in your application with this one weird trick. www.csoonline.com/article/3963...

This is good timing with my desire to get back into Rails and Ruby again. It will be like getting coffee with an old friend.

My Whoop when I sleep for 12 hours from jet lag.

It's absolutely infuriating when a product says it will integrate with your calendar and then you find out only if you use Google Calendar.

Phoenix now comes with DaisyUI. Looks like a great addition for non-designers(like me) #ElixirLang

In our upcoming Elixir instrumentation book I was really struggling to think of a custom metrics reporter that would be worth having the reader implement. ChatGPT really came through on some good to great ideas, and then some unhinged ideas that I also want to make happen. 😂

Hey good news! The Split.io Elixir SDK I worked on last year is now generally available. github.com/splitio/elix... #ElixirLang

Day two of vibe programming with Cursor. I don't get the hype. This is...terrible. The model regularly gets lost in my file system, fails to use its own internal API, overwrites existing things like migrations, outputs half completed modules. Is this thing an iPhone 4? Am I just holding it wrong?